batgrbproduct Analysis for Trigger=664078

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Dec 13 15:52:37 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger664078
======================================================================

  Trigger: 00664078      Segment: 000

  BAT Trigger Time: 469508805.44   [s; MET]
      Trigger Stop: 469508805.952   [s; MET]
               UTC: 2015-11-18T03:06:30.010020    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 57.1581445545425   Dec: 65.8686019549024  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.82
     Image Trigger?:     NO
     Rate S/N Ratio:     11.916375287813  [ if not an image trigger ]
     Image S/N Ratio:    7.82

  Flight Position:   [ source = BAT ]
    RA: 57.1581445545425   Dec: 65.8686019549024  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 57.1709843798993   Dec: 65.8888600983408  [deg; J2000]  
        { 03h 48m 41.0s , +65d 53' 19.9" }
         +/- 1.41353296197743 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.584449960780996 [arcmin] (formal 1-sigma fit error)
    SNR: 18.5522081488074
 
  Angular difference between Flight and Ground position is 1.255601 arcmin
 
  Partial Coding Fraction: 0.984375    [ including projection effects ]

  Duration
     T90: 23.5680000185966 +/- 10.6794936132401
        Measured from: 0.319999992847443
                   to: 23.8880000114441     [s; relative to TRIGTIME]
     T50: 5.60000002384186 +/- 2.98450397535287
        Measured from: 4.11199998855591
                   to: 9.71200001239777     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 6.69200003147125     
                   to: 7.69200003147125     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.015999972820282     
                   to: 30.8159999847412     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.245370   0.352183   0.209007   0.023798
           0.029954   0.031131   0.026878   0.023260 [error]
 Peak      0.043388   0.069401   0.034997   0.005486
           0.005957   0.006511   0.005582   0.004549 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1    Band2    Band3    Band4    Band5    Total      
                       15-25    25-50   50-100  100-350   15-150   15-350   keV
Fluence   Power-law 7.92e-08 1.28e-07 1.57e-07 3.79e-07 4.71e-07 7.42e-07   erg/cm2
              Error 1.27e-08 1.37e-08 2.58e-08 1.27e-07 6.06e-08 1.52e-07   erg/cm2
Peak flux Power-law 4.70e-01 4.28e-01 2.68e-01 2.58e-01 1.27e+00 1.42e+00   ph/cm2/s
              Error 8.16e-02 4.97e-02 4.47e-02 8.29e-02 1.47e-01 1.69e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.61e-08 1.35e-07 1.56e-07 1.78e-07 4.50e-07 5.45e-07   erg/cm2
              Error 1.39e-08 1.86e-08 2.83e-08 1.82e-07 7.12e-08 2.05e-07   erg/cm2
Peak flux Cutoff-PL 4.26e-01 4.76e-01 2.73e-01 8.69e-02 1.24e+00 1.26e+00   ph/cm2/s
              Error 9.19e-02 6.94e-02 5.27e-02 1.05e-01 1.51e-01 1.78e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.707    0.191    -      -           1.66e-03 2.01e-04   49.680 57
CPL   1.280    0.639      73.4  -26.6      2.89e-03 3.92e-03   48.710 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.671    0.197    -      -           9.69e-03 1.25e-03   65.030 57
CPL   0.756    0.972      59.6   82.1      3.16e-02 6.72e-02   61.590 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the index)
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 9.344000 sec.
T50 in the 50-300 keV band: 6.272000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   30.800    0.016   30.816
T90    23.568    0.320   23.888
T50     5.600    4.112    9.712
Peak    1.000    6.692    7.692
  • Click here for the BAT GCN circular template
  • Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte

    Image

    Pre-slew 15.0-350.0 keV image (Event data)

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
       57.1710    65.8889   0.0103    15.8922    12.6464         0.7043404     18.552 TRIG_00664078                 
     
    Foreground time interval of the image:
      0.016  11.061 (delta_t =  11.045 [sec])
    Background time interval of the image:
    -239.440   0.016 (delta_t = 239.456 [sec])
    

    Lightcurves

    Notes:

    1 s binning

    From T0-310 s to T0+310 s
    From T100_start - 20 s to T100_end + 30 s
    Full time interval

    64 ms binning

    Full time interval
    From T100_start to T100_end
    From T0-5 sec to T0+5 sec

    16 ms binning

    From T100_start-5 s to T100_start+5 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    8 ms binning

    From T100_start-3 s to T100_start+3 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    2 ms binning

    From T100_start-1 s to T100_start+1 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    SN=5 or 10 sec. binning (whichever binning is satisfied first)

    SN=5 or 10 sec. binning (T < 200 sec)

    Quad-rate summed light curves (from T0-300s to T0+1000s)

    Spectral Evolution

    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from    0.016 sec. to   30.816 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.70705     ( -0.187894   0.193742 )
    Norm@50keV  : 1.65536E-03    ( -0.000202466   0.000198958 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          49.68 using 59 PHA bins.
    # Reduced chi-squared =         0.8715 for     57 degrees of freedom 
    # Null hypothesis probability =   7.435738e-01
     
    Photon flux (15-150 keV)    in 30.8 sec: 0.220404 ( -0.023554  0.023559 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.71868e-07 ( -6.00736e-08  6.12098e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.016 sec. to   30.816 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.27968     ( -0.886019   0.391721 )
    Epeak [keV] : 73.3883      ( -20.2481 -73.3895 )
    Norm@50keV  : 2.88540E-03    ( -0.00155845   0.00628865 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.71 using 59 PHA bins.
    # Reduced chi-squared =         0.8698 for     56 degrees of freedom 
    # Null hypothesis probability =   7.445537e-01
     
    Photon flux (15-150 keV)    in 30.8 sec: 0.216772 ( -0.024402  0.024363 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 4.49458e-07 ( -7.05967e-08  7.17973e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.016 sec. to   30.816 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 1.37477   ( -2.904   -0.155573 )
    beta        : -1.98660    ( 1.97608   0.329632 )
    Epeak [keV] : 32.5291      ( -17.294 114.382 )
    Norm@50keV   : 0.211779    ( -0.204594   52.8196 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          46.34 using 59 PHA bins.
    # Reduced chi-squared =         0.8425 for     55 degrees of freedom 
    # Null hypothesis probability =   7.908258e-01
     
    Photon flux (15-150 keV)    in 30.8 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 11.0326  (-1.42078  1.70668)
    R^2/D10^2   : 7.27005E-02  (-0.0299871   0.0485578)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.74 using 59 PHA bins.
    # Reduced chi-squared =          1.153 for     57 degrees of freedom 
    # Null hypothesis probability =   1.999986e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  5.698e-08   1.032e-08
    25- 50  1.617e-07   2.304e-08
    50-150  1.115e-07   2.869e-08
    15-150  3.302e-07   4.481e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 120.003       (-43.4875      -118.993)
    Norm        : 0.938055       (-0.119899     0.155135)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          48.66 using 59 PHA bins.
    # Reduced chi-squared =         0.8536 for     57 degrees of freedom 
    # Null hypothesis probability =   7.763112e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.525e-08   1.046e-08
    25- 50  1.346e-07   3.088e-08
    50-150  2.403e-07   1.127e-07
    15-150  4.501e-07   1.404e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.35728        (-1.651      1.81868)
    R1^2/D10^2  : 0.243506        (-0.124983      0.310845)
    kT2 [keV]   : 28.7753        (-10.1466      40.1463)
    R2^2/D10^2  : 1.49019E-03    (-0.00138755   0.00591171)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.64 using 59 PHA bins.
    # Reduced chi-squared =         0.8298 for     55 degrees of freedom 
    # Null hypothesis probability =   8.116909e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  7.458e-08   3.452e-08
    25- 50  1.400e-07   6.295e-08
    50-150  2.398e-07   1.321e-07
    15-150  4.545e-07   2.216e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    6.692 sec. to    7.692 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.67134     ( -0.193129   0.200448 )
    Norm@50keV  : 9.68792E-03    ( -0.00126216   0.00124193 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          65.03 using 59 PHA bins.
    # Reduced chi-squared =          1.141 for     57 degrees of freedom 
    # Null hypothesis probability =   2.172657e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.27410 ( -0.14721  0.14724 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.99311e-08 ( -1.22939e-08  1.25114e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    6.692 sec. to    7.692 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.756216     ( -1.09916   0.84582 )
    Epeak [keV] : 59.5961      ( -14.5435 149.581 )
    Norm@50keV  : 3.15849E-02    ( -0.0315854   0.102726 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          61.59 using 59 PHA bins.
    # Reduced chi-squared =          1.100 for     56 degrees of freedom 
    # Null hypothesis probability =   2.830847e-01
     
    Photon flux (15-150 keV)    in 1 sec: 1.23740 ( -0.15096  0.15109 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 8.23323e-08 ( -1.37945e-08  1.43062e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    6.692 sec. to    7.692 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 0.848893   ( -0.644306   0.717552 )
    beta        : -2.14278    ( 9.99936   19.9994 )
    Epeak [keV] : 39.1705      ( -11.7105 28.2092 )
    Norm@50keV   : 0.377126    ( -0.403394   176.604 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          59.08 using 59 PHA bins.
    # Reduced chi-squared =          1.074 for     55 degrees of freedom 
    # Null hypothesis probability =   3.287581e-01
     
    Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 11.4584  (-1.45244  1.73571)
    R^2/D10^2   : 0.379602  (-0.153179   0.243245)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          70.60 using 59 PHA bins.
    # Reduced chi-squared =          1.239 for     57 degrees of freedom 
    # Null hypothesis probability =   1.064300e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.049e-08   2.156e-09
    25- 50  3.122e-08   4.655e-09
    50-150  2.387e-08   6.390e-09
    15-150  6.557e-08   1.035e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 129.210       (-48.9862      -127.195)
    Norm        : 5.38153       (-0.673429     0.908519)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          62.52 using 59 PHA bins.
    # Reduced chi-squared =          1.097 for     57 degrees of freedom 
    # Null hypothesis probability =   2.866172e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.397e-08   2.718e-09
    25- 50  2.530e-08   7.400e-09
    50-150  4.678e-08   2.737e-08
    15-150  8.605e-08   3.328e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 8.17541        (-2.02182      2.10867)
    R1^2/D10^2  : 0.966022        (-0.487835      1.26139)
    kT2 [keV]   : 28.0176        (-21.8438      63.0618)
    R2^2/D10^2  : 8.88447E-03    (-0.00855772   0.0499547)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          58.72 using 59 PHA bins.
    # Reduced chi-squared =          1.068 for     55 degrees of freedom 
    # Null hypothesis probability =   3.407196e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.300e-08   5.591e-09
    25- 50  2.836e-08   1.322e-08
    50-150  4.473e-08   2.450e-08
    15-150  8.609e-08   4.000e-08
    

    Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

    Power-law model
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.73751     ( -0.157972   0.162486 )
    Norm@50keV  : 3.67867E-03    ( -0.000360772   0.000354776 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.45 using 59 PHA bins.
    # Reduced chi-squared =         0.7974 for     57 degrees of freedom 
    # Null hypothesis probability =   8.645199e-01
     
    Photon flux (15-150 keV)    in 11.04 sec: 0.495147 ( -0.0425989  0.0426292 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.75028e-07 ( -3.8092e-08  3.86349e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.65671     ( -0.621837   0.240389 )
    Epeak [keV] : 180.871      (   )
    Norm@50keV  : 4.06875E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.40 using 59 PHA bins.
    # Reduced chi-squared =         0.8107 for     56 degrees of freedom 
    # Null hypothesis probability =   8.435269e-01
     
    Photon flux (15-150 keV)    in 11.04 sec: 0.493315 ( -0.044357  0.022197 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.72204e-07 ( -4.3693e-08  4.09054e-08 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.32139   ( 1.44467   1.44467 )
    beta        : -1.80127    ( 1.79319   0.205271 )
    Epeak [keV] : 55.8046      ( -56.4481 -56.4481 )
    Norm@50keV   : 6.74753E-03    ( -0.00342233   0 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.13 using 59 PHA bins.
    # Reduced chi-squared =         0.8206 for     55 degrees of freedom 
    # Null hypothesis probability =   8.261442e-01
     
    Photon flux (15-150 keV)    in 11.04 sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    

    S(25-50 keV) vs. S(50-100 keV) plot

    S(25-50 keV)  = 1.28e-07
    S(50-100 keV) = 1.57e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 23.5680000185966 sec.
    Hardness ratio (energy fluence ratio) = 1.22656
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.43531
    Count Ratio (50-100 keV) / (15-25 keV) = 0.851803
    

    Mask shadow pattern

    IMX = 2.778035389612715E-01, IMY = -6.233258369100032E-02
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 0.512000
    

    Spacecraft aspect plot

    Bright source in the pre-burst/pre-slew/post-slew images

    Pre-burst image of 15-350 keV band

    Time interval of the image:
    -239.440000 0.016000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    308.1345  40.8853    4.6  46.1 -136.8   1.4287   2.5    4.2	Cyg X-3                       
    326.2672  38.4518  582.1  40.1 -155.7  -0.0072  -0.0    9.0	Cyg X-2                       
      5.6792  29.9108    2.7  34.9  148.6   1.5846   4.2 ------	UNKNOWN                       
    322.0381  36.1673    2.6  43.9 -153.3   1.6937   4.5 ------	UNKNOWN                       
    

    Pre-slew background subtracted image of 15-350 keV band

    Time interval of the image:
    0.016000 11.060590
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    308.0467  40.9155    3.9  46.1 -136.7   0.2937   3.0    3.6	Cyg X-3                       
    326.0221  38.4022   42.8  40.3 -155.5  -0.0148  -0.3    8.5	Cyg X-2                       
    353.3886  16.2812    2.8  50.8  160.4   0.5413   4.1 ------	UNKNOWN                       
     57.1709  65.8888    0.6  15.9   12.6   0.7043  18.6 ------	UNKNOWN                       
    338.6197  48.6469    2.0  26.6 -157.6   0.2123   5.8 ------	UNKNOWN                       
    149.1559  71.0244    1.9  40.9  -30.3   0.3556   6.1 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    50.260610 962.730000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    326.1202  38.3218    5.5  55.9 -166.3 -16.7546  -2.1    2.4	Cyg X-2                       
     74.8019  55.2524    3.0  13.6   37.7   7.1598   3.8 ------	UNKNOWN                       
    317.7181  38.7658    3.7  58.7 -159.2  36.5031   3.2 ------	UNKNOWN                       
    
    Plot creation:
    Mon May  2 14:54:27 EDT 2016